What is the importance of sealing grout?

Sealing grout is crucial primarily because it prevents staining and moisture penetration. Grout is porous in nature, which means it can absorb liquids and stains easily. When grout absorbs water or spills, it can lead to mold, mildew, and unpleasant odors, compromising the integrity of the tiled surface and affecting overall hygiene. By applying a sealant, you create a barrier that protects the grout from moisture and stains, significantly extending its lifespan and maintaining the appearance of the tiled surface.

While improving the color of the grout and creating a shiny surface are benefits that some sealants can provide, they are secondary to the primary function of moisture and stain protection. Additionally, sealants do not inherently increase the adhesive quality of the grout itself; their main purpose is to safeguard the grout once it’s in place.